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Kalgan Boronia

Boronia heterophylla

Kalgan Boronia
Photo: Murray Fagg, CC BY 3.0 au

Kalgan boronia is a slender, erect shrub from south-west Western Australia, grown for its deep pink to red four-petalled flowers in spring. It does best in a well-drained, slightly acidic position with good light and moist but not waterlogged soil.

Family
Rutaceae (Citrus family)
Grows as
Shrub
Light
Full sun, Part shade
Water
Keep the soil evenly moist, especially in the growing season, and avoid waterlogging.
Soil
Well-drained, acidic, sandy or peaty soil.
Temperature
10–25 °C; tolerates mild frost but protect from hard frost.
How easy
Moderate
Native range
SW. Australia
Climate
subtropical

About

Boronia heterophylla, commonly known as red boronia or Kalgan boronia, is a plant in the citrus family Rutaceae, and is endemic to the south-west of Western Australia. It is an erect, slender shrub with trifoliate leaves and deep pink to red, four-petalled flowers arranged singly in leaf axils.

Where it grows

The red boronia is usually found growing near streams between Busselton and Albany in the Esperance Plains, Jarrah Forest, Swan Coastal Plain and Warren biogeographic regions of Western Australia.

Other Boronia plants

Barbalin boronia · Winged Boronia · Boronia albiflora · Alpine Boronia · Boronia alulata · Boronia amabilis · Boronia amplectens · Boronia anceps · Cyanothamnus anemonifolius · Cyanothamnus quadrangulus · Boronia angustisepala · Boronia anomala

Text excerpted from the Wikipedia article Boronia heterophylla by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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